2wa0

Crystal structure of the human MAGEA4

spinqualitylabelsall models 2wa0, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2wa0 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.3Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function MAGA4_HUMAN Not known, though may play a role in embryonal development and tumor transformation or aspects of tumor progression. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The MAGE (melanoma associated antigen) protein family are tumour-associated proteins normally present only in reproductive tissues such as germ cells of the testis. The human genome encodes over 60 MAGE genes of which one class (containing MAGE-A3 and MAGE-A4) are exclusively expressed in tumours, making them an attractive target for the development of targeted and immunotherapeutic cancer treatments. Some MAGE proteins are thought to play an active role in driving cancer, modulating the activity of E3 ubiquitin ligases on targets related to apoptosis. Here we determined the crystal structures of MAGE-A3 and MAGE-A4. Both proteins crystallized with a terminal peptide bound in a deep cleft between two tandem-arranged winged helix domains. MAGE-A3 (but not MAGE-A4), is predominantly dimeric in solution. Comparison of MAGE-A3 and MAGE-A3 with a structure of an effector-bound MAGE-G1 suggests that a major conformational rearrangement is required for binding, and that this conformational plasticity may be targeted by allosteric binders. Structures of Two Melanoma-Associated Antigens Suggest Allosteric Regulation of Effector Binding.,Newman JA, Cooper CD, Roos AK, Aitkenhead H, Oppermann UC, Cho HJ, Osman R, Gileadi O PLoS One. 2016 Feb 24;11(2):e0148762. doi: 10.1371/journal.pone.0148762., eCollection 2016. PMID:26910052 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Melanoma-associated antigen

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